I'm assuming that you know how the whole models thing works right? And if I give you the models and the models.dat, you can figure it out? If not, let me know, I'll try to help you out, or ask someone on the MB. Here you go. It should work. Just copy the lines into models.dat.
Ps: the rat is missing, It doesn't have a model, but the rest are there.
For the rest of the stuff, just get Dano's models, he's got all the trees and whatnot.